1VideoConverence is Web2.0 audio-video conference
call software for Asterisk with support for Web,
phone, MSN, Skype, Yahoo, and Jabber clients. This
VoIP and VVoIP conferencing app for business,
government, education, and health care is based on
C#, WinFX, XAML, and .NET 3.0.

4PSA VoipNow is PBX software for service providers and enterprises. Easy to use and deploy, it can run on x86 or PowerPC based servers and delivers advanced IP telephony services. It can be deployed in various working scenarios to provide hosted VoIP services in high availability xSP environments, advanced call center services, or enterprise telephony in organizations of all sizes. A free Express version is available.

ADM (Asterisk Desktop Manager) aims to integrate
your desktop with the Asterisk PBX and hardware IP
phone by providing some useful features such as
automatic on-call volume reduction, one click
dialing (from the clipboard), CRM integration via a browser popup, BlueTooth presence detection and automatic call redirection when you walk out of the office, and transfer of the current call from the desktop.

AgileVoice provides features for running VoIP
businesses, including broadband residential and
business phone, PC to phone, wholesale
(termination/origination), traffic exchange, IP
centrex, calling cards, and more. It was designed
with carrier grade customers in mind. As such, it
scales from many Asterisk systems down to a single
all-in-one system.

The Alamin GSM SMS Gateway is a group of daemons that allows you to send/receive SMS messages from any GSM device that supports AT+ commands (GSM modems or GSM mobile phones) or supported by Gnokii. A client program allows you to send messages from any IP client. An SMTP interface is provided to allow MTAs to send SMS directly to the GSM network. IMP (Incoming Message Processor) modules allows you to extend functionality to implement banking, network administration, bd querys, etc. from a GSM mobile phone.

Amatix Office is a complete communication platform for small and medium-sized businesses. It provides email, calendar, contacts, conventional telephony like ISDN, new generation VoIP telephony like SIP, instant messaging, presence, and other features needed to power a business. Amatix Office is very easy to install and use and does not require any special IT skills. It is a live software appliance which boots a computer directly from a CD or USB flash drive without any software installation.

Appkonference is a high performance voice/video conferencing system for Asterisk. It is a fork of appconference, and it focuses on reliability and scalability. Appkonference has been tested on both Asterisk 1.4 and 1.6.X. Both Asterisk installations supported more than 1200 participants at a time.